The nerve impulse which leads to initiation of smooth muscle contraction

A. Cause opening of the calcium channel which leads to increase in Ca+2 contraction

B. Cause both plasma membrane and T - tubules to undergo depolarisation

C. Inhibits Na+ entry in sarcomere

D. Is initiated by binding of acetylcholine to receptors in sarcoplasmic reticulum

Correct Answer: Cause opening of the calcium channel which leads to increase in Ca+2 contraction

Description: Ans. (a) Cause opening of the calcium channel which leads to increase in Ca2+ contraction(Ref: Ganong, 25th ed/p.116)The never impulse which leads to initiation of smooth muscle contraction Cause opening of the calcium channel which leads to increase in Ca2+ contraction

Category: Physiology

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